Set Mobile Toilets Every Four Floors

In high-rise building construction, it is generally required to set up mobile toilets every four floors after exceeding eight floors, but specific regulations vary by region and standard. Here is a detailed explanation:

1. Explicit Requirements in the "Construction Safety Inspection Standard" (JGJ59-2011)
This standard stipulates that for high-rise building construction exceeding eight floors, mobile toilets must be installed every four floors. This requirement is a national standard with universal applicability, aiming to safeguard the sanitary needs of construction workers and reduce safety hazards caused by inconvenient toilet access. For example, if a building has a total of 20 floors, mobile toilets should be installed on the 8th, 12th, 16th, and 20th floors.

2. Supplementary and Detailed Local Regulations

• Beijing: The "Beijing Construction Site Safety Production Standardization Management Atlas (2019 Edition)" suggests that for high-rise building construction exceeding a certain number of floors, it is advisable to set up a mobile toilet every four floors, but does not specify the starting floor. The term "advisable" indicates a recommended requirement, and actual implementation should consider factors such as project scale and construction duration.
• Wuxi: The "Wuxi Public Toilet Management Measures" stipulate that for high-rise buildings, temporary toilets must be installed every four floors, also without specifying the starting floor. This clause focuses more on sanitary management during the building's usage phase, but can be referenced during construction.

3. Differences in Standards and Implementation Recommendations
It should be noted that the "Construction Site Environment and Hygiene Standard" (Article 5.1.6) stipulates that for high-rise building construction exceeding eight floors, it is advisable to set up temporary toilets every five floors, which differs from some "four-floor interval" requirements. This difference may stem from the different backgrounds and focuses of the various standards.

Implementation Recommendations:

• Prioritize Local Regulations: If there are explicit regulations in the project location (such as in Beijing or Wuxi), local standards should be prioritized.
• Adjust According to Project Characteristics: For areas without a specified starting floor, flexible arrangements can be made based on factors such as building height, construction duration, and personnel density. For example, for super high-rise buildings (such as those over 50 floors), the interval between floors can be appropriately shortened to enhance convenience.
• Ensure Toilet Compliance: Mobile toilets must meet basic requirements for hygiene, ventilation, and odor control, and should be regularly cleaned and maintained to avoid polluting the construction environment.